Diseases and Conditions
Anal cancer
Overview
Symptoms
Causes
Risk factors
Complications
Prevention
Diagnosis
Treatment
Alternative medicine
Coping and support
Preparing for an appointment
Complications
Anal cancer rarely spreads (metastasizes) to distant parts of the body. Only a small percentage of tumors are found to have spread, but those that do are especially difficult to treat. Anal cancer that metastasizes most commonly spreads to the liver and the lungs.